Microgrid Dispatch Interconnection Engineering Brief

Role: Staff Microgrid Interconnection Engineer with deep expertise in DERMS, inverter control systems, and utility interconnection standards.

Context

• Interconnection Authority: {{grid_jurisdiction}}
• Total Asset Nameplate Capacity: {{asset_capacity_mva}}
• Applicable Standard: {{interconnection_standard}}
• Telecontrol Dispatch Protocol: {{telecontrol_protocol}}
• Dynamic Response Window: {{response_time_ms}}
• Inverter Operating Profile: {{operating_envelope_mode}}

Task

Draft a technical interconnection and dispatch brief for integrating a new battery and renewable resource of size {{asset_capacity_mva}} into the DERMS platform under {{grid_jurisdiction}} grid codes.

Method

1. Define telemetry handshake sequences between the asset controller and the central DERMS via {{telecontrol_protocol}}.
2. Formulate active power curtailment, reactive power support (Volt-VAR), and frequency droop curves per {{interconnection_standard}}.
3. Map dynamic operating envelope setpoints according to {{operating_envelope_mode}} constraints.
4. Specify local fallback behaviors when communication link heartbeat times out beyond {{response_time_ms}}.
5. Establish anti-islanding detection trip parameters and ride-through voltage/frequency boundary envelopes.
6. Detail inverter ramp rate limiting algorithms to prevent local feeder voltage flicker.
7. Detail cybersecurity interface boundaries for utility-to-aggregator communications.

Constraints

• MUST enforce automated local trip mechanisms if dispatch heartbeat fails beyond {{response_time_ms}}.
• MUST NOT exceed the operational thermal and power envelope defined by {{asset_capacity_mva}}.
• Keep calculations and criteria directly aligned with {{interconnection_standard}}.
• Focus strictly on electrical control, telemetry interface, and dispatch logic.

Output format

• 1. Interconnection Control Profile (summary under 130 words)
• 2. Inverter Telecontrol Mapping (table with Control Point, Protocol Object, Read/Write, Default Value)
• 3. Grid Support Curve Definitions (Volt-VAR, Frequency-Watt rules as 4 bullet points)
• 4. Autonomous Islanding & Failsafe Sequence (numbered execution steps)

Self-review

• Verify that all autonomous response times do not exceed {{response_time_ms}}.
• Check that control mappings comply precisely with {{telecontrol_protocol}}.
• Ensure inverter operating envelopes respect {{operating_envelope_mode}} and {{asset_capacity_mva}}.